Quickest way: Open File Explorer, right-click the SD drive, and select Format. Select File System > Start > OK. To see if your SD card is write-protected, look for a physical tab, move the tab in the opposite direction. To see if your SD card is partitioned, right-click Start > Disk Management. Look for multiple partitions next to your SD disk.
Some Acer systems include a Smart Card Reader that allows you to insert an ATM or Credit Card to make online payments. This feature requires an additional software
Disable and Enable SD Card Reader in Device Manager. Press Windows + R, type devmgmt.msc in Run dialog, and press Enter to open Device Manager. Next expand Memory devices, and right-click your SD card reader device to choose Properties. Then click Driver tab and click Disable Device button.Do a hard factory reset via Settings > General > Transfer or Reset iPhone > Erase all content and settings. Be sure to back up your data first. If the mic is still causing problems, restore your Step 1. Right click “My Computer” and select “Disk Management”. Step 2. In Disk Management, your SD card will appear as a removable disk. Check if it has a drive letter like D or E. Step 3. If not, right click the SD card and select “Change Drive Letter and Paths”. Step 4.
5. Run CHKDSK to fix corrupt files. Press the Win + R keys to open the Run dialogue. Type the below command and press Enter. cmd. Execute the below command. chkdsk C: /f /r /x. Make sure to replace /x with the drive letter of your SD card. Close command prompt. Restart your PC.
When you inserted the CAC for the first time, it asked if you wanted to Pair the smart card. If you did that, it is using the CAC as a login credential. You can unpair your card by copying and pasting this command in Terminal: sc_auth unpair `id -un` `id -un` inserts your username into the command. To prevent macOS from asking to pair, run this:
.
